Swimming pool filter



FIG. 1 is a top perspective view of a swimming pool filter showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation view thereof, the opposite side is a mirror image;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a swimming pool filter, as shown and described. 